Physics – Atomic Physics
Scientific paper
2010-07-03
Physics
Atomic Physics
7 pages
Scientific paper
The operation of atomic clocks is generally carried out at room temperature, whereas the definition of the second refers to the clock transition in an atom at absolute zero. This implies that the clock transition frequency should be corrected in practice for the effect of finite temperature of which the leading contributor is the blackbody radiation (BBR) shift. Experimental measurements of the BBR shifts are difficult. In this work, we have calculated the blackbody radiation shift of the ground-state hyperfine microwave transition in 87Rb using the relativistic all-order method and carried out detailed evaluation of the accuracy of our final value. Particular care is taken to accurately account for the contributions from highly-excited states. Our predicted value for the Stark coefficient, k_S=-1.240(4)\times 10^{-10}\text{Hz/(V/m)}^{2} is three times more accurate than the previous calculation [1].
Jiang Dansha
Safronova M. S.
Safronova U. I.
No associations
LandOfFree
Blackbody radiation shift in 87Rb frequency standard does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Blackbody radiation shift in 87Rb frequency standard, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Blackbody radiation shift in 87Rb frequency standard will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-402333